REGTESTS: ssl: activate new SSL reg-tests with AWS-LC

REGTESTS: ssl: activate new SSL reg-tests with AWS-LC

Prerequisites are now available in AWS-LC, so we can enable these
reg-tests.

With this patch, aws-lc only has 5 reg-tests that are not working:
- reg-tests/ssl/ssl_reuse.vtc: stateful session resumption is only supported with TLSv1.2
- reg-tests/ssl/ssl_curve_name.vtc: function to extract curve name is not available
- reg-tests/ssl/ssl_errors.vtc: errors are not the same than OpenSSL
- reg-tests/ssl/ssl_dh.vtc: AWS-LC does not support DH
- reg-tests/ssl/ssl_curves.vtc: not working correctly

Which means most of the features are working correctly.